Electric motor or generator.



EDWARD A. HALBLEIB,` or nccnns'rnis,

NEW? YORK, ASSIGNQR'TO NORTHEAST ynrgnorisrvnz: ooinPanY, ornecnnsrnnj.New sona, A ooRPonATioN.

Specification of Letters Pat aait.

Patented Oct'. 22,1912.Y

Application inea necembe is, isle. semi nrt-597,731.

v To all whom 'it may concern:

Be it known that I, EDWARD A. Hannnniis,"

a,citizen of the United Sitatesanclresident of Rochester, in the countyof Monroe and Stateof New York, have invented certain' "new and usefulimprovements in Electric Mot-ors or Generators,` of which the followingis a specification.

This application relates. to electric motors and generators of the 'typein. Which collectl ing-.brushes are employedv in connection with aconimutator. The object of the invention is to produce a machine of thekind in question, in which the brushes, thebrush-holders and thecoinmutator are. readily vand 'conveniently acces sible for cleaning orrepairs, and for this purpose I employ an arrangement of these parts,and of certain portions 'of the frame 'of the machine, which will 'behereinafter' v are pivoted aie'mounted'in a portion of the 75 framewhich comprises a ring fixed to describedand claimed. l v. l In thedrawings :-'-Figure 1 is an end-elevation of a motor or generatorembodying the present invention; Fig. 2 is aside-ele- 25 vtion. of theend of the generator shown in Fig. .1, taken partly in section on theline 2 2, in the latter figure; Fig. 3l is a detail view, on a somewhatlarger scale, of one of the brush-holders with a rbrush secured 30thereon; and Fig. 4 isv a detail view of one of thespring-supportingarms. A

The invention is illustrated as embodied in an electric motor orgenerator of the inclosed type, having a .fieldring o and an armature 6of any. ordinary or 'suit-able form.

The armature is mounted upon an armatureshaft 7, which is provided atone'end with a commut-ator 8 of ordinary form.

The brushes .11 .are illustrated ascarbon i 40 brushes, mounted-upon theupper ends lof insulated -from the frame, as shown. Each. rod isflattened on one side, as shown in Fig.

1, so that the rods do not turn in the traine, but the brush-holderslitloosely upon-the rods to provide for 'the .necessary pivotalmovement. The brush-'holdersare shown as ring in either direction. p.nectioiis with the brushes are ina de through 90 binding-*posts 18.mounted upon the traine,

arranged in pairs, and bushings 19 of insu- 55 latin.; material aremounted on the rods 14 to maintain the brush-holders in place andinsnlate'theni from the frame. l

y In einer to maintain the brushes in engagement with the coniinutator.each brush- 60 holder is pnovided ivitli a pin Q0 to which is connectedthe upper end of'a tension-spring The lower end of each spring iscoiiiiect-ed with a U-shaped springsupporting arm 'lt'betweeutliebiburcations of the brushholder. and. is prevented from turning on therod by the forni ot' the hole through which the rod passes, which isparticularly illustrated in Fig. 4. The spring 'tends to 70 rocl=tliebrush-holder toward the commutaltor, and thus maintains the brush inoperative position.

The rods Mon which the brush-holders the edgeof the tield-ring 5 byineans of the ordinary screws 31.' 'Integral'. with', the frame-ring 30is a cover-plate 32, which closes the end of the motor-casing except foi80 Ventilating openings. Projecting from'the lower part of `the ring30-and the plate 3Q are tivo arnis 33, 'which are integral, at theirouter ends. with a support. V3tfor the shaftbearing. about.- theconiniut-ator by loosening' the screws. 31 and'tu'rning the fra-me-ineinbers just described, as a .whole, upon.v the iield- The electricalconbut insulated therefrom, and connected with the rods y14e by means ofconducting-strips'17. The general arrangement of the brushes andbrus'li-liol.ders` and the frame nieniber is 95 one in whichconvenientaccess is aitorded. to the brushes and the brush -holdersandthe, commutator, for the purpose of cleaning or repairing these parts.Owing tothe opposite arrangement of the brushes and brushe 100l holdersaccess may be had'to both brushes/ at once from the same direction, i'.c.. in theY illustrated machine,l from above. In the usual arrangementof brushes, in-Which each brush 'and brush-holder occupies a sinilar105-position with relation to the commutator, it

' is necessary to have access/to one brush troni.'

above, and the -other brush Afrom below.

rlliis arin is mounted upon the rod The' brushes Imay be 4adjusted 85This .feature is one of great value Where the invention is employed inconnection .Wi-th a generator used on an automobile, or underothercircumstances Where the space isconlined and .access to the machineis diicult.' The arrangement ofthe frame-arms 33 alsoconducestoConvenience in the care of the Vcommutator vand brushes; B5? -arranging`both these arlnsbelow the armature-shaft,

all fixed obstruct-ions are removed from the neighborhood of the brushesand the brushholders, While, at the same time, by spacing possible toclean the brushes and the commu- 15 the arms apart at the bottom, it isrendered tator lin the ordinary manner, that is, by laying a pieceofemery cloth over the commutator, drawing the ends downward be tween thearms, and' then Workingthe eme'ry @15th back and forth whiln'gaged 'bythel and located below the 'armature-shaft and spaced apart to 'affordaccess to the commutator from below, the brush-holders 12 pivoted abovethe arms and projecting up. Wardly, and the brushes 11 fixed on thebrush-holders and engaging vthe commutator.l

l EDWARD A. HALBLEIB.

. Vitnesses: FARNUM F. DoRsEY,

D. GURNEE.

